/*
 * Copyright 2011 www.pretty-tools.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#pragma once
#include "resource.h"       // main symbols

#include "XPCOMAdapter_i.h"
#include "SafeLocalFile.h"
#include "ScriptImplements.h"

#if defined(_WIN32_WCE) && !defined(_CE_DCOM) && !defined(_CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA)
#error "Single-threaded COM objects are not properly supported on Windows CE platform, such as the Windows Mobile platforms that do not include full DCOM support. Define _CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA to force ATL to support creating single-thread COM object's and allow use of it's single-threaded COM object implementations. The threading model in your rgs file was set to 'Free' as that is the only threading model supported in non DCOM Windows CE platforms."
#endif

// CFileInputStream

class ATL_NO_VTABLE CFileInputStream
    : public CComObjectRootEx<CComSingleThreadModel>
    , public CComCoClass<CFileInputStream, &CLSID_FileInputStream>
	, public IScriptImplementsImpl<CFileInputStream, IDispatchImpl<IFileInputStream, &IID_IFileInputStream, &LIBID_XPCOMAdapterLib, /*wMajor =*/ 1, /*wMinor =*/ 0> >
	, public IObjectSafetyImpl<CFileInputStream, INTERFACESAFE_FOR_UNTRUSTED_CALLER>
    , public ISafeLocalFileImpl<CFileInputStream>
    , public IInputStreamNoScript
{
public:
	CFileInputStream();
	~CFileInputStream();

DECLARE_REGISTRY_RESOURCEID(IDR_FILEINPUTSTREAM)

BEGIN_CATEGORY_MAP(CFileInputStream)
	IMPLEMENTED_CATEGORY(CATID_SafeForScripting)
	IMPLEMENTED_CATEGORY(CATID_SafeForInitializing)
END_CATEGORY_MAP()

BEGIN_COM_MAP(CFileInputStream)
	COM_INTERFACE_ENTRY(IDispatch)
	COM_INTERFACE_ENTRY(IFileInputStream)
    COM_INTERFACE_ENTRY(IInputStreamNoScript)
	COM_INTERFACE_ENTRY(IInputStream)
	COM_INTERFACE_ENTRY(ISeekableStream)
	COM_INTERFACE_ENTRY(ISafeLocalFile)
	COM_INTERFACE_ENTRY(IScriptImplements)
	COM_INTERFACE_ENTRY(IObjectSafety)
END_COM_MAP()

	DECLARE_PROTECT_FINAL_CONSTRUCT()

	HRESULT FinalConstruct()
	{
		return S_OK;
	}

	void FinalRelease()
	{
	}

private:
    File m_file;

public: // IInputStream
    STDMETHOD(available)(ULONGLONG* pRet);
    STDMETHOD(close)(void);
    STDMETHOD(isNonBlocking)(VARIANT_BOOL* pRet);

public: // ISeekableStream
    STDMETHOD(seek)(LONG whence, LONGLONG offset);
    STDMETHOD(setEOF)();
    STDMETHOD(tell)(ULONGLONG* pRet);

public: // IFileInputStream
    STDMETHOD(init)(ILocalFile* file, LONG ioFlags, LONG perm, LONG behaviorFlags);
};

OBJECT_ENTRY_AUTO(__uuidof(FileInputStream), CFileInputStream)
